Bottom portion of a finger mounted device



FIG. 1 is a perspective view of a bottom portion of a finger mounted device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a second side top view thereof;

FIG. 4 is a first side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a second side view thereof; and,

FIG. 7 is a bottom view thereof.

The portions in broken line are not claimed. 

The ornamental design for a bottom portion of a finger mounted device, as shown and described. 